Convoy L21A SST40 CW (2019) review
The Convoy L21A SST40 CW (L21ASST40CW) released in 2019. It uses Luminus SST40 CW LED, SMO reflector and 1 x 21700 Li-Ion battery. The powerful emitter in this flashlight provides up to 2300 lm output, 129600 cd intensity, and a beam distance of 720 m.
This light has 4 modes of lighting. The memory function is a nice feature, the light will remember the last used mode.
Table of contents:
Convoy L21A SST40 CW (L21ASST40CW) specifications
| Brand | Convoy |
|---|---|
| Name | L21A SST40 CW |
| Type | L21ASST40CW |
| Rating | |
| Launch | 2019 |
| Form | flashlight |
Body
The aluminium body of flashlight treated with a Type III hard-anodized, anti-abrasive finish.
| Weight | 360 g |
|---|---|
| Length | 169 mm |
| Head diameter | 64.5 mm |
| Material | aluminium alloy with HAIII hard-anodized finish |
| Colors | black |
System
The emitter of L21A SST40 CW manufactured by Luminus, a US-based LED manufacturer. The L21A SST40 CW has a smooth reflector. The properly focused smooth reflector gives you a more cohesive hotspot and therefore throws better. It has an AR coated lens.
| Emitter | Luminus SST40 CW LED |
|---|---|
| Color temperature | 6500 K |
| Reflector | SMO |
| Lens | AR coated glass |
| Switch | mechanical rear, forward clicky |
Performance
The throw is the calculated distance in meters at which the flashlight produces a light intensity of 0.25 lux. The candela per lumen (cd/lm) ratio can be used to determine if a flashlight has a spot or flood type beam. Well-focused spot beams can be over 100 cd/lm, tactical flashlights are typically between 20-100 cd/lm, and work lights are less than 10 cd/lm.
| Flux | 2300 lm |
|---|---|
| Intensity | 129600 cd |
| Throw | 720 m |
| CD/LM factor | 56.35 |
Software
The L21A SST40 CW has mode memory. Mode memory means that the light will remember the mode you were using when the light was last turned off, and when you turn it on again.
| Modes | 4 modes |
|---|---|
| Mode memory | yes |
| Ramping mode | no |
| Strobe | no |
| SOS/Beacon | no |
Features
The L21A SST40 CW cannot charge batteries directly. You may need an external charger to keep your battery going. This flashlight has a built-in low voltage protection (LVP) to prevent damage to the cell from over-discharge, so protected cells are not necessary. The built-in thermal control automatically adjusts brightness output to prevent overheating.
| Battery | 1 x 21700 Li-Ion battery |
|---|---|
| Battery indicator | no |
| Charger port | no |
| LVP | yes |
| Thermal regulation | yes |
| Protection | IPx8 |
| AUX LEDs | no |
| Magnetic | no |
The performance of the Convoy L21A SST40 CW flashlight is measured according to the ANSI / NEMA FL1 Standard 30 seconds after switching the light on. The ANSI/NEMA FL1 2009 Standard is a set of flashlight performance guidelines.
The specifications above are based on the official data published by the manufacturer, but we also take user reviews into consideration. If you found an error or something lacking in the specifications above for the Convoy L21A SST40 CW, then don’t hesite and signal the problem to us.
Convoy L21A SST40 CW (L21ASST40CW) pictures
Convoy L21A SST40 CW (L21ASST40CW) comparisons
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